Concrete-mixer or the like.



T. AHLBORN.

CONCRETE MIXER OR THE LIKE.

APPLICATION FILED MAR. 8.19I3.

3 SHEETS--SHEEI I.

Patented Nov. 19,1918.

HP A. L

T. AHLBORN.-

CONCRETE MIXER OR THE LIKE.

APPLICATION FILED MAR. B. 1913.

1,284,959. Patented Nov. 19, 1918.

T. AHLBURN.

concave MIXER OR THE LIKE.

APPLICATION FILED MAB. 8. I913 Patented Nov. 19, 1918'.

3 SHEETS-SHEEI 3.

i if- 4 40 1 Z 61 F *7 J5 Z L a 1 5 J ii i F lZ K38 d UNITED STATES PATENT OFFICE.

THEODORE AHLIBOBN, OF CHICAGO, ILLI OF WATERLOO, OHIO, A CORPORATION OF OHIO.

MACHINERY CORPORATION,

NOIS, ASSIGNOR TO WATERLOO CEMENT CONCRETE-MIXER OR THE LIKE.

lpeomcaflon of Letters Patent.

Patented Nov. 19, 1918.

Application filed March 8, 1913. Serial No. 762,835.

To all whom it may concern:

Be it known that I, THEODORE AHLBORN, a citizen of the United States, residing at Chicago, in the county of Cook and {State of Illinois, have invented certain new and useful Improvements in Concrete-Mixers or the like, of which the following is a description.

My invention belongs to that general class of devices known as mixers, and relates particularly to a convenient, portable concrete mixer of the type known as a single-batch mixer. The invention has among its objects the production of a device of the kind described that is extremly simple, convenient, efiicient and satisfactory, that may be manufactured and sold at comparatively low cost and used Wherever found applicable. It is particularly suitable for small jobs, as it may be very conveniently transported from place to place, and may be satisfactorily manually operated, if desired.

To this end my invention consists in the novel construction, arrangement, and combination of parts herein shown and described, and more particularly pointed out in the claim.

In the drawings, wherein like reference characters indicate like or corresponding parts Figure 1 is a side elevation of my improved mixer.

Fig. 2 is a top elevation of thesame.

Fig. 3 is a central vertical sectional view taken substantially on line 3, 3 of Fig. 1, the mixing drum turned to its vertical position, and

F1 4 is a side elevation of the tilting han es.

Referrin to the drawings, 1 is a suitable frame bar avin the ends bent up to form substantially a 6, and thence extended as at 2 to form axles for the vheels 3, which support the frame. Mounted on the axle part at each side is a pltte 4, or its equivalent, to which is secured a frame consisting of the side bars 5 and an end bar 6. The frame ma be made of any suitable material; as s own, it is made of pipe, givin a very substantial, as well as a simp e an economical construction. Arranged at the center of the frame bar 1, and pivotally supported thereon, is a shell or receptacle 8, which is preferably formed as at 10 at the center, so as to substantially form a cone.

The receptacle may be pivotally secured to the frame in any desired manner. As shown, it is provided with a pin 7 secured thereto, which extends through an extension 11, and is secured in position by a nut 11'. If desired, a chamber 12 may be provided, in which may be packed a suitable lubricant. The pin or shaft 7 is shown secured in place by a babbitt 7, 7 being depressions in the shaft, in which the babbitt may flow. The art 9 of the shell is also preferabl exten ed as at 9', and ball bearlogs, or t eir equivalents, provided for carrying the drum. The shell 8 is provided with an extended shell part or rim 14, the two parts forming the mixing drum, which is open upon one side. One or more blades 15 for mixing and breaking the material may be arranged within the drum.

Any suitable means may be provided for rotating the drum, as well as tilting the same for charging or to discharge the contents' For rotating the drum, I preferably provide a flange 16, having suitable teeth for engagement with a pinion 17 secured upon a shaft 18, which may be rotated in any desired manner. A very simple construction is shown in the drawings, in which a fly wheel 19, having a hub 20 is secured to the shaft 18. A bar 21 is piyotally connected at 22 to thefly wheel, and at 23 at the opposite end to an arm 24. The arm 24 is pivotally su ported at 25 by a bracket 26, and is provi ed with arms 28 on each side, in whlch operating handles 29 may be positionpd. The bracket 26 may be formed as at 2 suitable manner.

At the opposite side of the frame 1 is arranged a member 31, which is secured to the axle 2, the member being provided with one or more arms 32. The purpose of the arms 32 is to rovide a simple construction for rocking t e frame 1, and thereby tilting the mixing drum, to char e the same or to discharge the contents. bracket 33 is secured at 34 to the frame part 5 on this side of the frame 1, the same bei similar to the bracket 26 upon the opposlte side. Secured to the brackets 26 and 33 are brackets '35, which carry a chute 36 having its discharge side or spout 37 terminating over the open end of the drum when tilted, as shown in Fig. 2, so that material discharged into the chute will enter the drum. A board or plat form 38 is also Secured to the side bars 5, 5,

7 connecting bar 31, drives the shaft 18 and pinion 17 and rotates the mixing drum upon its axis. The mass or mixture within the drum is thoroughly mixed by the rotation of the drum, the same being agitated by the blades '15, which throw it upon the cone surface 10 and about the drum. After the same is sufiiciently mixed, the latch 40 is then released so that the drum may be swun into the discharging position, b the handfies 32, so that it may be discharge into a wheelbarrow, or other receptacle, placed to receive the contents. It will be noted that the mixer is extremely simple and portable.

It is particularly adapted for small jobs or repairing work, but its use is not confined to this, for its capacity is limited only by the size of the drum, which is preferably made of a size most suitable for manual operation. Therefore, it will, of course, be understood that while manual operating mechanism is shown, a gas engine or equivalent source of parting from the spirit of my invention,

hence I do not wish to be understood as limiting myself to the exact form, construction, arrangement, or combination of parts herein shown and described, or uses mentioned.

What I claim as new and desire to secure by Letters Patent is In a mixing device, the combination of a mixer drum with a pivoted supporting part having means between its pivots for rotatably carrying said drum, a pivoted frame carried by said supporting part, means for rocking said supporting part including an arm; a bracket rigidly secured to said frame,

- and a pivoted gravity latch secured to said bracket and normally adapted to engage said arm and hold the same in locked position substantially as described.

In testimony whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

THEODORE AHLBOBN.

Witnesses:

ROY W. HILL, CHARLES I. Conn.

Correction'lh Letters Patent No.1,284,959.

It io heraby certified that the residence and State of incorporation of tho ass ignaa in Letters Potent No. 284,959, granted November 19, 1918, upon the application of Theodore Ahlborn, of Chicogo, Illinois, for ih improvement in Concrete-waters or thalLike, wan erroneously given as Wattarldo, Ohio, a corporation of Ohio,

.wh erean said residence and State of incorporation should have' been given as Water-inc, lawn, a corporation of Iowa, as shown by tho reoords of assignments in ofiio? and that the sa d Letters Patent should ba read with this oorrection .theroin that tho'same may conform to the record of the dose in the Patent Ofliqa.

Signed and soalod this 24th day 5! Doemhar, A. 1)., 1918.

' F. W. H. CLAY,

Acting Gommism'oner qfPa tonts.

[ssAnJ 

